Tools
Tools
Li, Xiaoming, Chen, Qing-Lin, He, Chen, Shi, Quan, Chen, Song-Can, Reid, Brian John 
ORCID: https://orcid.org/0000-0002-9613-979X, Zhu, Yong-Guan and Sun, Guo-Xin
(2019)
Organic carbon amendments affect the chemodiversity of soil dissolved organic matter and its associations with soil microbial communities.
Environmental Science & Technology, 53 (1).
pp. 50-59.
ISSN 0013-936X
Preview |
PDF (Accepted manuscript)
- Accepted Version
Download (956kB) | Preview |
Abstract
The “4 per mil” initiative recognizes the pivotal role of soil in carbon re-sequestration. The need for evidence to substantiate the influence of agricultural practices on chemical nature of soil carbon and microbial biodiversity has become a priority. However, owing to the molecular complexity of soil dissolved organic matter (DOM), specific linkages to microbial biodiversity have eluded researchers. Here, we characterized the chemodiversity of soil DOM, assessed the variation of soil bacterial community composition (BCC) and identified specific linkages between DOM traits and BCC. Sustained organic carbon amendment significantly (P < 0.05) increased total organic matter reservoirs, resulted in higher chemodiversity of DOM and emergence of recalcitrant moieties (H/C < 1.5). In the meantime, sustained organic carbon amendment shaped the BCC to a more eutrophic state while long-term chemical fertilization directed the BCC towards an oligotrophic state. Meanwhile, higher connectivity and complexity were observed in organic carbon amendment by DOM-BCC network analysis, indicating that soil microbes tended to have more interaction with DOM molecules after organic matter inputs. These results highlight the potential for organic carbon amendments to not only build soil carbon stocks and increase their resilience but also mediate the functional state of soil bacterial communities.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | sdg 2 - zero hunger ,/dk/atira/pure/sustainabledevelopmentgoals/zero_hunger |
| Faculty \ School: | Faculty of Science > School of Environmental Sciences |
| UEA Research Groups: | Faculty of Science > Research Groups > Environmental Biology Faculty of Science > Research Groups > Geosciences Faculty of Science > Research Centres > Centre for Ecology, Evolution and Conservation |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 07 Dec 2018 17:30 |
| Last Modified: | 21 Oct 2022 20:35 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/69224 |
| DOI: | 10.1021/acs.est.8b04673 |
Downloads
Downloads per month over past year
Actions (login required)
 |
View Item |